N06.22

Billable code

Secondary membranous nephropathy with isolated proteinuria

The ICD-10 code for secondary membranous nephropathy with isolated proteinuria is N06.22.

Clinical notes

Code first

This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.

, if applicable, other disease or disorder or poisoning causing membranous nephropathy

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

secondary membranous nephropathy with nephrotic syndrome (N04.22)

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

Secondary membranous nephropathy, NOS

Use additional code

This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.

code, if applicable, for adverse effect of drug causing membranous nephropathy

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
•This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
•If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

N06.20Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified
N06.21Primary membranous nephropathy with isolated proteinuria
N06.29Other isolated proteinuria with diffuse membranous glomerulonephritis
N06.22Secondary membranous nephropathy with isolated proteinuria

Associated MS-DRGs

N06.22 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.